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Vlad1618 [11]
3 years ago
13

PLEASE HELP!!!! ASAP!!!

Mathematics
1 answer:
Leni [432]3 years ago
6 0
The vertex form is
y = a {(x - h)}^{2}  + k
where (h,k) is the vertex, and a is the coefficient.

On the graph, the vertex is point (2,0), so our vertex form is
y =  {(x - 2)}^{2}  + 0
which is answer D. We remove the a, since the parabola is not stretched, just shifted.
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The global surface water area is 361, 132,000 square metres. Calculate the volume of water needed to cause a 3mm in sea level.
vovangra [49]

Answer:

The volume of water is 396 cubic meter.

Step-by-step explanation:

Area of water, A = 132000 square meter

Height, h = 3 mm = 0.003 m

The volume of water is given by

V = Area x height

V = 132000 x 0.003

V = 396 cubic meter.

3 0
3 years ago
Solve for all values of x by factoring.<br> x^2 + 4x – 30 = -3x
vichka [17]

Answer:

{x}^{2}  + 4x - 30 =  - 3x \\{x}^{2}  + 7x - 30 = 0 \\  {x}^{2}  - 3x + 10x - 30 = 0 \\ x(x - 3) + 10(x - 3) = 0 \\ (x - 3)(x + 10) = 0 \\  \boxed{x = 3} \\  \boxed{x =  - 10}

<h3><em><u>x=3 or x=-10</u></em> is the right answer.</h3>

7 0
2 years ago
Solve by completing the square<br><br> x^2-6x-16=0
Greeley [361]

Answer:

x = 8 or

x = -2

Step-by-step explanation:

<h2><em>Completing The Square</em><em>:</em></h2>

x² - 6x - 16 = 0

Here,

a = 1

b = -6

c = -16

Now,

x² - 6x + [6/2(1)]² - [6/2(1)]² - 16 = 0

x² - 6x + (6/2)² - (6/2)² - 16 = 0

x² - 6x + (3)² - (3)² - 16 = 0

(x - 3)² - 9 - 16 = 0

(x - 3)² - 25 = 0

(x - 3)² = 25

x - 3 = +-√25

x - 3 = +- 5

x = 3 +- 5

x = 3 + 5 or x = 3 - 5

<em><u>x = 8 or x = -2</u></em>

Hope it's helpful

7 0
3 years ago
Read 2 more answers
Rashad walks 4 miles in 74 minutes. Express his rate as a simplified fraction
amid [387]

Answer:

2/37

Step-by-step explanation:

4/74 can be simplified to <u>2/37</u>

4 0
2 years ago
What is the domain?<br> What is the range?
almond37 [142]

Answer:

The domain of a function is the set of all possible inputs for the function. For example, the domain of f(x)=x² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0. We can also define special functions whose domains are more limited.

The range is the difference between the largest and smallest numbers. The mid range is the average of the largest and smallest number.

Hope this helps!

8 0
3 years ago
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